Section 6-3 “Interactions of Forces and Motion”

DirectionsPart I: Find the following solutions to the given problems. You may work with a partner to solve the given worksheet.

- Go to Puffin Academy- Open a new link- Click on the Search Bar- Type in “Forces”- Search Forces- Click on the top link “Forces” (20 Aug 2014)

Part II: Revising through the Revise Section of the Outline.

Part III: After you go through the Revise section, click on the activity link found next to the revise link. Complete the video FORCES.

Part IV: Fill out the following Test

Objectives:By the end of this worksheet, students will be able to:I.) Describe an unbalanced force, or a balanced forceII.) Explain what happens when an object is acted on by unbalanced force, and a balanced forceIII.) Describe forces that can act on an object

Question 1:What is the Best way to measure a force?

a.) Using a force meterb.) Using a rulerc.) Using a thermometer

Question 2:Force can be

a.) Pushes onlyb.) Pulls onlyc.) Pushes and Pulls

Question 3What is the unit of force called?

a.) The newton, nb.) The newton, Nc.) The neutron, N

Question 4What can we say about the forces on an object that is not moving?

a.) There must be only one force acting on itb.) The forces must be balancedc.) It must be very heavy

Question 5

The arrows in this diagram represent the sizes of the forces acting on a stationary tennis ball. What will happen to the tennis ball?

a.) It will stay stillb.) It will start to move upwardsc.) It will start to move downwards

Question 6What happens to the air resistance on a car as the car goes faster?

a.) It decreasesb.) It stays the samec.) It increases

Question 7A force of 4 N acts on a lever 2 m from the pivot. What is the moment?

a.) 8 Nmb.) 6 Nmc.) 2 Nm

Question 8One way to increase the turning force on a spanner is to:

a.) Use a shorter spannerb.) Use a longer pivotc.) Use a longer spanner

Question 9Gravity is an example of what?

a.) A contact forceb.) An un-contact forcec.) A non-contact force

Question 10What store of energy does friction always produce?

a.) Heatb.) Lightc.) Gravitational